Sr. Frontend React.JS Developer

IDS Logic; Dadri; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

IDS Logic is seeking a highly skilled Senior React.js / Next.js Developer to lead frontend development of scalable, high‑performance e‑commerce applications. You will own complex frontend modules, collaborate with UI/UX, backend, and product teams, and drive modern, responsive, conversion‑oriented experiences.

The ideal candidate has strong experience in e‑commerce platforms, SSR/SSG, and a passion for clean, maintainable code. You will mentor juniors and contribute to coding standards.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or related field.
• 5+ years in frontend development with React/Next.js.

Responsibilities

• Design, build, and maintain scalable web apps using React.js and Next.js.
• Create SSR, SSG, and hybrid apps.
• Develop reusable UI components and ensure pixel-perfect interfaces from designs.
• Optimize performance (Core Web Vitals) and SEO.
• Integrate REST and GraphQL APIs; collaborate with backend teams.
• Mentor junior developers and perform code reviews.
• Write tests and support automated testing.

Skills

React.js

Next.js

TypeScript

JavaScript

HTML5

CSS3

SCSS/SASS

Tailwind CSS

Bootstrap

Responsive Design

Cross-browser

Education

Bachelor's degree in CS/IT

Tools

Git

GitHub

GitLab

Bitbucket

Job description

Job Summary

We are looking for a highly skilled, hands‑on Senior React.js / Next.js Developer who is passionate about building scalable, high‑performance web applications. The ideal candidate should be technically confident, capable of independently owning complex frontend development, and have strong experience in developing E-commerce platforms.

You will work closely with UI/UX designers, backend developers, QA engineers, and product managers to deliver modern, responsive, and conversion‑focused applications.

Key Responsibilities

• Design, develop, and maintain scalable web applications using React.js and Next.js.
• Build server‑side rendered (SSR), static site generated (SSG), and hybrid applications using Next.js.
• Develop reusable, maintainable, and optimized UI components.
• Convert Figma/Adobe XD designs into pixel‑perfect responsive interfaces.
• Optimize application performance, Core Web Vitals, SEO, and page loading speed.
• Integrate REST APIs and GraphQL APIs.
• Collaborate with backend teams to ensure seamless API integration.
• Write clean, reusable, and well‑documented code following coding standards.
• Perform code reviews and mentor junior developers.
• Troubleshoot production issues and provide quick resolutions.
• Participate in sprint planning, estimation, and technical discussions.
• Ensure application security and follow frontend best practices.
• Implement unit testing and support automated testing.
• Continuously improve development processes and coding standards.

Mandatory Technical Skills

Frontend

• React.js (Advanced)
• Next.js (Advanced)
• TypeScript
• JavaScript (ES6+)
• HTML5
• CSS3
• SCSS/SASS
• Tailwind CSS
• Bootstrap
• Responsive Web Design
• Cross‑browser compatibility

State Management

• Redux Toolkit
• Redux
• Context API
• React Query / TanStack Query

API Integration

• REST APIs
• GraphQL
• Axios
• Fetch API

Performance Optimization

• SSR
• CSR
• ISR
• SSG
• Lazy Loading
• Code Splitting
• Image Optimization
• Caching
• Core Web Vitals
• Lighthouse Optimization

Authentication

• JWT Authentication
• OAuth
• Role‑Based Access Control

Version Control

• Git
• GitHub
• GitLab
• Bitbucket

Build Tools

• Webpack
• Vite
• npm
• Yarn

Testing

• Jest
• React Testing Library
• Cypress (Preferred)

E‑commerce Experience (Mandatory)

Candidates must have experience working on one or more E‑commerce platforms involving:

• Product Catalog Management
• Product Listing Pages (PLP)
• Product Detail Pages (PDP)
• Shopping Cart
• Wishlist
• Checkout Flow
• Payment Gateway Integration
• Coupon & Discount Modules
• Order Management
• Customer Dashboard
• User Authentication
• Search & Filtering
• Product Reviews & Ratings
• Inventory Integration
• Multi‑vendor or Marketplace (Preferred)
• Multi‑language and Multi‑currency support (Preferred)

Experience with platforms such as Shopify (Headless), Magento/Adobe Commerce, BigCommerce, WooCommerce Headless, Commerce Tools, Saleor, Medusa, or custom‑built e‑commerce solutions is highly desirable.

Preferred Skills:

• Headless Commerce Architecture
• Progressive Web Apps (PWA)
• Micro Frontends
• Docker
• CI/CD Pipelines
• AWS, Azure, or GCP deployment
• Firebase
• Contentful, Strapi, Sanity, or other Headless CMS
• Elastic Search or Algolia
• Web Accessibility (WCAG)
• SEO Best Practices

Required Soft Skills

• Strong problem‑solving abilities
• Confident technical decision‑maker
• Excellent debugging and analytical skills
• Strong communication skills
• Ability to work independently
• Ownership mindset
• Team collaboration
• Attention to detail
• Time management
• Client interaction experience

Qualification

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• Equivalent practical experience will also be considered.

What We're Looking For

The ideal candidate should:

• Be a true hands‑on developer, not just a coordinator.
• Have confidence in designing technical solutions and making architectural decisions.
• Independently own complete frontend modules.
• Possess strong knowledge of modern React.js and Next.js ecosystems.
• Demonstrate proven experience in high‑traffic E‑commerce applications.
• Be capable of mentoring junior developers while actively contributing to coding.
• Have a passion for writing clean, scalable, and maintainable code.

Nice to Have

• Experience with AI‑assisted development tools (e.g., GitHub Copilot, Cursor).
• Experience integrating analytics tools such as Google Analytics 4, Google Tag Manager, or Mixpanel.
• Knowledge of A/B testing, personalization, and conversion rate optimization (CRO).
• Familiarity with Agile/Scrum methodologies.